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Analog Devices Inc. AD8131ARZ-REEL7
- Part No.:
- AD8131ARZ-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD8131ARZ-REEL7.pdf
- Description:
- IC OPAMP DIFF 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,361
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Product details
Overview
AD8131ARZ-REEL7 from Analog Devices is a high-speed differential driver IC designed for single-ended-to-differential signal conversion in precision analog and high-speed data transmission systems. It delivers 400 MHz −3 dB bandwidth, 2000 V/μs slew rate, fixed gain of 2, and output balance error of −60 dB at 10 MHz - enabling low-EMI video line driving and differential ADC interfacing.
For engineers reviewing the AD8131ARZ-REEL7 datasheet, AD8131ARZ-REEL7 pinout, AD8131ARZ-REEL7 application, or AD8131ARZ-REEL7 equivalent, key selection criteria include common-mode output voltage control via VOCM, differential output balance performance up to 100 MHz, distortion specifications (e.g., −94 dBc third harmonic @ 5 MHz), and SOIC-8 package compatibility with industrial temperature range (−40°C to +125°C).
Technical Context
The AD8131ARZ-REEL7 employs dual internal feedback loops - one for differential-mode gain control (set by trimmed 750 Ω/1.5 kΩ resistors) and another for common-mode output voltage regulation - enabling independent control of VOUT,dm and VOUT,cm. This architecture achieves −60 dB output balance error at 10 MHz without external components.
It operates from ±1.4 V to ±5.5 V or single 2.7 V to 11 V supplies, supports input common-mode voltage ranges from −7.0 V to +4.0 V depending on supply configuration, and maintains 1.97–2.04 V/V closed-loop gain accuracy across temperature and load conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| −3 dB Bandwidth | 400 MHz (large-signal, ±5 V supply); enables full HD video and >200 MSPS ADC driver applications |
| Slew Rate | 2000 V/μs (±5 V supply); supports fast transient response for digital line driving |
| Output Balance Error | −60 dB @ 10 MHz; suppresses radiated EMI and harmonic distortion in twisted-pair transmission |
| Fixed Gain | 2 V/V (internal resistor network); eliminates need for external gain-setting components |
| VOCM Control Range | ±VS (e.g., −5 V to +5 V with ±5 V supplies); allows precise level-shifting for single-supply ADC interfacing |
| Harmonic Distortion | −94 dBc (3rd harmonic, 5 MHz, 800 Ω load); meets NTSC video and high-fidelity data acquisition requirements |
| Supply Current | 10.5–12.5 mA (±5 V); optimized for low-power high-speed operation |
Pinout & Package
AD8131ARZ-REEL7 is housed in an 8-lead SOIC package (SOIC_N, 150 mil width), RoHS-compliant, with standard JEDEC MS-012AC footprint and moisture sensitivity level MSL-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: −DIN | Negative Input | Inverts input signal at +OUT; used with +DIN for differential input or grounded for single-ended mode |
| 2: VOCM | Common-Mode Output Voltage Control | Sets DC bias of both outputs 1:1; enables level-shifting for single-supply ADCs without AC coupling |
| 3: V+ | Positive Supply Voltage | Accepts +2.7 V to +5.5 V (single) or +5 V (dual); decoupling required near pin |
| 4: +OUT | Positive Differential Output | Provides inverted replica of −DIN signal; drives one leg of balanced transmission line or ADC input |
| 5: −OUT | Negative Differential Output | Provides inverted replica of +DIN signal; complements +OUT for true differential signaling |
| 6: V− | Negative Supply Voltage | Accepts −5.5 V to 0 V (single) or −5 V (dual); requires local decoupling |
| 7: NC | No Connect | Internally unconnected; must remain floating per datasheet |
| 8: +DIN | Positive Input | Primary input for single-ended signals; when −DIN grounded, defines system input impedance as ~1.125 kΩ |
Key Features
| Feature | Design Value |
|---|---|
| Dual feedback architecture | Separate differential and common-mode control loops eliminate external trimming and ensure <−60 dB balance error to 10 MHz |
| Integrated gain-setting resistors | Matched 750 Ω and 1.5 kΩ on-chip resistors deliver stable G = 2 with <±1.5% gain error over temperature |
| VOCM-controlled common-mode output | 1:1 tracking of VOCM voltage enables seamless interface to 3 V or 5 V single-supply ADCs without level-shifting circuitry |
| Low harmonic distortion | −94 dBc third harmonic at 5 MHz (800 Ω load) supports high-SFDR applications including medical imaging and test equipment |
| Fast overload recovery | 5 ns recovery time preserves sampling fidelity in ADC driver applications following large transient events |
Applications
| Video Line Driver | Digital Line Driver |
|---|---|
Use Scenario: Driving analog RGB or YPbPr video signals over 100 Ω twisted-pair (Cat5) cabling in broadcast or industrial vision systems. IC Role / Device Role / Timing Role: Single-ended-to-differential converter with fixed gain and adjustable common-mode output for EMI-reduced transmission. Use Value: Eliminates bulky transformers while preserving DC and low-frequency content; −60 dB balance error minimizes radiated emissions per FCC Class B limits. | Use Scenario: Transmitting high-speed LVDS-compatible or pseudo-differential logic signals (e.g., DDR clock distribution) across PCB backplanes. IC Role / Device Role / Timing Role: High-slew-rate differential driver providing matched edge rates and minimal skew between +OUT/−OUT. Use Value: 2000 V/μs slew rate ensures <14 ns 0.1% settling for 2 Vp-p signals, supporting >150 Mbps data rates with jitter <0.5 ps RMS. |
| Low-Power Differential ADC Driver | Single-Ended to Differential Level Shifter |
Use Scenario: Driving 12–16-bit SAR or pipeline ADCs (e.g., AD7960, AD9265) operating from 3 V supplies in portable instrumentation. IC Role / Device Role / Timing Role: Gain-of-2 driver with VOCM-adjustable output common-mode voltage matching ADC input range. Use Value: −94 dBc third harmonic at 5 MHz and 25 nV/√Hz noise floor maximize SNR and SFDR without external filtering or gain stages. | Use Scenario: Converting ground-referenced sensor outputs (e.g., bridge amplifiers, current shunts) to differential format for noise-immune transmission to remote DAQ systems. IC Role / Device Role / Timing Role: Precision level-shifting amplifier with user-defined output common-mode offset and high CMRR (>70 dB). Use Value: VOCM pin accepts DC voltage reference (e.g., 1.25 V from REF192) to set exact output bias, eliminating AC coupling capacitors and associated low-frequency roll-off. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar differential driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS4561IDGKR | Lower −3 dB bandwidth (1.8 GHz vs. 400 MHz), higher quiescent current (22 mA), no internal gain resistors - requires external feedback network | Better suited for >500 MSPS ADC drivers; less optimal for transformerless video or cost-sensitive line driving | Select THS4561IDGKR only when >1 GHz small-signal bandwidth or rail-to-rail output swing is required; AD8131ARZ-REEL7 offers lower BOM count and proven video performance. |
| LMH5401RTVR | Higher bandwidth (4.2 GHz), integrated 100 Ω termination, but no VOCM pin - common-mode output fixed at VCC/2 | Optimized for RF/IF differential signaling; lacks flexible level-shifting capability needed for mixed-supply ADC interfaces | Choose LMH5401RTVR for GHz-range communications; AD8131ARZ-REEL7 remains preferred for precision analog, video, and industrial ADC driver use cases requiring VOCM control. |
Compared with THS4561IDGKR and LMH5401RTVR, AD8131ARZ-REEL7 provides the only combination of internal gain setting, VOCM-adjustable common-mode output, and −60 dB balance error below 100 MHz - making it uniquely suitable for cost-sensitive, EMI-critical, and mixed-supply analog signal chain designs.
Availability
AD8131ARZ-REEL7 is available at Aetrix Electronics and suitable for video line driving, differential ADC interfacing, and single-ended-to-differential level shifting requiring stable component supply and long-term industrial availability.
Supply support for AD8131ARZ-REEL7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.
The AD8131 belongs to Analog Devices' high-speed differential amplifier product line, engineered specifically for precision signal integrity in video, instrumentation, and data acquisition systems where EMI reduction, DC coupling, and common-mode flexibility are critical.
FAQ
What is the maximum operating temperature range for the AD8131ARZ-REEL7?
The AD8131ARZ-REEL7 is rated for operation from −40°C to +125°C ambient temperature, qualified per industrial-grade specifications and supported by thermal data showing 121°C/W junction-to-ambient resistance in the SOIC-8 package. This makes AD8131ARZ-REEL7 suitable for under-hood automotive modules, industrial PLCs, and outdoor video enclosures where extended thermal margins are required.
Does the AD8131ARZ-REEL7 require external resistors to achieve gain of 2?
No, the AD8131ARZ-REEL7 integrates precision-trimmed 750 Ω and 1.5 kΩ resistors to deliver a nominal gain of 2 without any external components. These on-chip resistors ensure gain accuracy of 1.97–2.04 V/V across temperature and supply variations, eliminating layout area, BOM cost, and matching errors associated with discrete feedback networks in the AD8131ARZ-REEL7 design.
Can the AD8131ARZ-REEL7 drive a 100 Ω differential load directly?
Yes, the AD8131ARZ-REEL7 is characterized to drive 200 Ω differential loads (i.e., 100 Ω per leg) with full performance, including −60 dB balance error and 400 MHz bandwidth. For sustained 60 mA linear output current compliance, proper PCB layout with short traces, local 0.1 μF + 10 μF decoupling at V+ and V−, and optional 5–10 Ω series resistors at outputs are recommended in the AD8131ARZ-REEL7 implementation.
How does the VOCM pin function in the AD8131ARZ-REEL7?
The VOCM pin on the AD8131ARZ-REEL7 sets the DC common-mode voltage of both +OUT and −OUT terminals with 1:1 tracking ratio - e.g., applying 2.5 V to VOCM forces the average of +OUT and −OUT to 2.5 V. This enables direct interfacing to single-supply ADCs without AC coupling, and supports level-shifting from bipolar input sources to unipolar ADC inputs in the AD8131ARZ-REEL7 application.
Is the AD8131ARZ-REEL7 pin-compatible with other members of the AD813x family?
Yes, the AD8131ARZ-REEL7 shares identical SOIC-8 pinout and core functionality with AD8132 and AD8138 variants, though gain, bandwidth, and power consumption differ. Pin compatibility allows drop-in substitution in existing layouts when upgrading performance - however, AD8131ARZ-REEL7's fixed G = 2 and −60 dB balance at 10 MHz distinguish its use case from programmable-gain or ultra-low-noise derivatives in the same family.
AD8131ARZ-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Differential
- Number of Circuits:
- 1
- Output Type:
- Differential
- Slew Rate:
- 2000V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 400 MHz
- Current - Input Bias:
- 500 nA
- Voltage - Input Offset:
- 1.5 mV
- Current - Supply:
- 11.5mA
- Current - Output / Channel:
- 60 mA
- Voltage - Supply Span (Min):
- 2.8 V
- Voltage - Supply Span (Max):
- 11 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AD8131ARZ-REEL7 FAQ
1.How can I place an order for AD8131ARZ-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8131ARZ-REEL7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AD8131ARZ-REEL7 reliable?
The price and inventory of AD8131ARZ-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8131ARZ-REEL7 is usually 5 days.
3.What payment methods are accepted for AD8131ARZ-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8131ARZ-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8131ARZ-REEL7?
AD8131ARZ-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8131ARZ-REEL7 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AD8131ARZ-REEL7?
For technical support, including AD8131ARZ-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8131ARZ-REEL7 requirements.
6.How does Aetrix verify that AD8131ARZ-REEL7 is sourced from the original manufacturer or authorized distributors?
All AD8131ARZ-REEL7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AD8131ARZ-REEL7 meets industry standards.
7.What is the process for return or replacement of AD8131ARZ-REEL7?
All AD8131ARZ-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD8131ARZ-REEL7, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AD8131ARZ-REEL7 part is unused and in its original packaging.
Return procedure for AD8131ARZ-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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